JPH0451183U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the external structure of a switch device according to an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, Fig. 3 is a circuit diagram of the embodiment, and Fig. 4 explains a conventional example. FIG. 5 is a plan view showing an example of mounting an electronic circuit board in a conventional example. Explanation of symbols: 5... Switch device, 6... Housing, 7a to 7h... Switch contact, 8a to 8p...
Lead terminal, 9a to 9h...Buffer circuit, 10
a, 10b...Batsuhua, 11, 12, 14, 1
5...OR circuit, 13, 16...inverter circuit.

Claims (1)

[Claim for Utility Model Registration] A plurality of switch contacts, a group of resistors that generate a signal at the output side of each switch contact at a voltage level corresponding to the on/off switching of these switch contacts, and a group of resistors that generate a signal at the output side of each switch contact, A group of buffer circuits that power amplify and transfer the generated signals and a control circuit that controls switching between signal transfer and non-transfer of these buffer circuit groups are connected to lead terminals with pitch spacing that conforms to the standard specifications for integrated circuit devices. A power supply terminal, a ground terminal, an output terminal for outputting the output signal of the buffer circuit, and the switch contact are integrally formed on one side of the package. A switch device characterized in that an input terminal for applying a control instruction signal to a control circuit is constituted by the group of lead terminals described above.